'Our advice may well shift' in a crisis: Dr. Theresa Tam
Coronavirus
Canada's former chief public health officer looks back at the lessons learned during the turbulent years of the COVID-19 pandemic. She left her role as the country's top doctor on June 20. Read more: http://www.cbc.ca/1.7566745 »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS Connect with CBC News Online: For breaking news, video, audio and in-depth coverage: http://bit.ly/1Z0m6iX Follow CBC News on TikTok: https://bit.ly/3TnHioe Follow CBC News on Twitter: http://bit.ly/
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